Answer:
Explanation:competition. A common demand by two or more organisms upon a limited supply of a resource; for example, food, water, light, space, mates, nesting sites. ...
coevolution. ...
ecological niche. ...
mutualism. ...
predation. ...
parasitism. ...
Realized niche. ...
Fundamental niche.
The Nazis invaded Poland on 1 September 1939.
The Nazis justified the invasion by suggesting that Poland had been planning to invade Germany, and with false reports that Poles were persecuting ethnic Germans.
On the 17 September, the Soviet Union joined forces with Germany and invaded Poland.
The Nazis and Soviets used an encirclement tactic to occupy Poland, sending troops in from all directions. Over 2000 tanks and 1000 planes were used to advance on Warsaw, the Polish capital. By the 27 September 1939, just 26 days after invasion, Poland surrendered to the Nazis.
Following the surrender, the Nazis and the Soviets divided Poland between them, as had been secretly agreed in the Molotov-Ribbentrop Pact.
The western area of Poland was annexed into the Greater German Reich. The Soviet Union took the eastern section. On 23 October 1939, the area not annexed to Germany or the Soviet Union was placed under the control of a German administration led by Hans Frank. This administration was called the General Government.
The period of war following the invasion of Poland is often referred to as The Phoney War. This is because between the Allied declaration of war and the German invasion of France and the Low Countries there was little real action, with just one small land operation (when the French invaded Germany’s Saar district) in the whole of western Europe.
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Answer:
1. What influenced the formation of many different African civilizations? How did geography influence the development of African civilization?
a. African civilizations were influenced by trade, with Arabs, Europeans and India. Geography tended to isolate South and Central African civilizations from foreign influence.
2. Name the three kingdoms of the Niger River Valley. Describe the rulers, the economy, and the societies of each kingdom.
a. The Ghana, Mali, and Songhai civilization existed consecutively with some overlap. At first trade was infrequent because of the desert until the use of camels. Ghana’s rulers grew rich by taxing the trade of gold and salt. Ghana’s kings acted as a religious leader, chief judge, and military commander. The kingdom of Mali was also based on gold. The Songhai broke from Mali and controlled the trade routes
3. Identify and describe two contributions to civilization made by each of the primary South, Meso, and North American civilizations.
a. The Maya civilization developed the the position-value number system with zero and an accurate calendar. They also developed rubber and the corbelled arch.
This question is incomplete, here´s the complete question.
Which best explains the successful development of agriculture in the desert climate of the American Southwest by American Indian cultures such as the Pima, Hopi, and Hohokam?
a) People of the Southwest were instructed in cultivating drought-tolerant crops by traders from civilizations in present-day Mexico.
b) People of the Southwest developed systems of canals to divert water from nearby rivers to irrigate their crops.
c) People of the Southwest developed a seasonal calendar that allowed them to predict the best times of year to plant and harvest.
d) People of the Southwest primarily cultivated drought-resistant grasses for animal feed and subsisted on meat from livestock.
Answer: b) People of the Southwest developed systems of canals to divert water from nearby rivers to irrigate their crops.
Explanation:
The Hopi were part of the western Pueblo tribes, while the Hohokam were the ancestors of the Pima and Tohono O’odham, and were located in the western and southern limits.
Their developments in agriculture required access to rivers, smaller streams, and seasonal waterways, so they built stone canals to irrigate their fields.
